*{
    margin: 0;
    padding: 0;
}
html {
    height: 100%;
    width: 100%;
    overflow: hidden;
    margin: 0;
    padding: 0;
    /* background-color: skyblue; */
    /* background: url(/firectrl/images/wlop_1.jpg) no-repeat 0px 0px;
    background-size: 100% 100%;
    -moz-background-size: 100% 100%; */
}
 
body {
    display:flex;
    align-items:center;
    justify-content:center;
    height: 100%;
}